'Hunger Games' star Jena Malone welcomes baby boy

Malone has posted a picture of her and boyfriend Ethan DeLorenzo with baby Ode Mountain DeLorenzo Malone on Instagram . In the caption she writes, "What an incredible blessing to be chosen by this amazing, kind, gentle and beautiful soul to be his parents."

She doesn't say when the baby was born, but mentions "The best weekend of our lives!!!"

Malone is best known for her role as Johanna Mason in "The Hunger Games" series. She starred in "Lovesong" earlier this year.